diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8772447aa..e0a01ca56 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -528,7 +528,7 @@ if(USE_GCC OR USE_CLANG)
     list(APPEND EXTRA_LDFLAGS "-Wl,-undefined,error")
     list(APPEND EXTRA_LDFLAGS "-Wl,-compatibility_version,${DYLIB_COMPATIBILITY_VERSION}")
     list(APPEND EXTRA_LDFLAGS "-Wl,-current_version,${DYLIB_CURRENT_VERSION}")
-  else()
+  elseif(NOT OPENBSD)
     set(CMAKE_REQUIRED_FLAGS "-Wl,--no-undefined")
     check_c_compiler_flag("" HAVE_NO_UNDEFINED)
     set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})